|Activity: Definition and properties of a trapezoid(Coordinate Geomtery) - Math Open Reference||
|Go to:||http://www.mathopenref.com/coordtrapezoid.html (opens a new window)|
An interactive applet and associated web page that show the definition and properties of a trapezoid in coordinate geometry. The applet has a trapezoid with draggable vertices. As the user re-sizes the trapezoid the applet continuously recalculates its altitude and median from the vertex coordinates. The trapezoid can be rotated on the plane to show the more complex cases.
The grid, coordinates and calculations can be turned on and off for class problem solving. The applet can be printed in the state it appears on the screen to make handouts.
The web page has a full definition of a trapezoid when the coordinates of the points defining it are known, and has links to other pages relating to coordinate geometry.
Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, student can access it again from any web browser at home or in the library with no login required.
This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
|Cost:||Does not require payment for use|
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|Courses:||Geometry||Coordinate geometry, Trapezoid|